WASHINGTON — After over 200 years without voting rights, the efforts to allow Washington, DC, to become the 51st state are gaining traction. The House of Representatives has set the first-ever congressional hearing on statehood legislation, and now a majority of the Democrats running for president say they support making DC a state. The House will hold a hearing July 24 for the Washington, D.C. Admission Act, which would put the nation’s capital on even ground with other states, giving it two voting senators and at least one representative. The bill would end “taxation without representation” in DC — a...